Lumen Decay Prediction in LED Lamps

Bo Sun, Xuejun Fan, Willem van Driel, Thomas Michel, Jiang Zhou, Guo Qi Zhang

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

3 Citations (Scopus)

Abstract

Lumen decay of LEDs is affected by time, junction temperature and input current. In LED lamps, both temperature and input current vary with time due to driver's degradation and temperature change of lamps. This paper proposes a lumen decay prediction method which considers effects of operation time, temperature and current by taking the interaction of LED and driver performance into account. In particular, a lumen decay model for LED source with consideration of the ever changing current and temperature is developed and validated experimentally. Several scenarios are analyzed theoretically by applying different assumptions.
Original languageEnglish
Title of host publication2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages1-5
Number of pages5
ISBN (Electronic)978-1-5090-2106-2
DOIs
Publication statusPublished - 18 Apr 2016
EventEuroSimE 2016: 17th International Conference on Thermal Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems - Montpellier, France
Duration: 17 Apr 201620 Apr 2016
Conference number: 17
https://www.eurosime.org/index.php/2016-montpellier/

Conference

ConferenceEuroSimE 2016
CountryFrance
CityMontpellier
Period17/04/1620/04/16
Internet address

Keywords

  • Reliability
  • LED Lamp
  • Lumen Decay Prediction

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